Augusto Posted March 14, 2018 Report Share Posted March 14, 2018 Hello Everyone. Hello everyone I am having a problem with my Vision V350, in the company where I work there are two PLCs, a V350 and a V1210 that communicate by MODBUS. We have a screen that alerts us when a communication problem happen and when we check our V350 it shows us an error that is: O.S. (Stop Mode - Fatal Error) Enum: 0x00001740 IP: 0x00250000 00076A2C Ldr: 0x000000DE Desc: Undefined Opcode Some changes had been made to the program and then this error arose so it went back to the previous program, but the problem is still happening. Does anyone have any idea why this happens? By performing a reset of the equipment, the problem is solved momentarily but this is not recommended for our production. Quote Link to comment Share on other sites More sharing options...
MFJ Posted March 26, 2018 Report Share Posted March 26, 2018 Hello, I had a similar problem some years ago with unican communication. The communication cable was too long, the environment was also too noisy, I changed the baud and purhased a Phoenix Contact CAN repearer. Quote Link to comment Share on other sites More sharing options...
freddy Posted March 25, 2019 Report Share Posted March 25, 2019 Hello everyone I also encountered the same problem (causing customers' troubles) Is the communication cable too long? Is it the power cord of the device or the power cable of the HMI? The environment is too noisy? Is there usually a decibel that regulates the use environment? I changed Porter? How do I change it? Is there any other way to improve? Quote Link to comment Share on other sites More sharing options...
MVP 2021 Joe Tauser Posted March 26, 2019 MVP 2021 Report Share Posted March 26, 2019 That is generally caused by noise in the system somewhere usually coming in on the I/O wires. How long has this system been in use? Do you have VFD's connected? Large inductive loads such as contactors or solenoids? Joe T. Quote Link to comment Share on other sites More sharing options...
MVP 2021 Ausman Posted March 26, 2019 MVP 2021 Report Share Posted March 26, 2019 5 hours ago, Joe Tauser said: How long has this system been in use? Joe's ask is a critical question that needs to be answered asap. The relevance is "did it work OK before, and if so, how long before the gremlins appeared?" cheers, Aus Quote Link to comment Share on other sites More sharing options...
freddy Posted March 26, 2019 Report Share Posted March 26, 2019 Dear Joe The system has been in use for half a year. There are also links to VFD Ok, I will check the noise. Thanks to JOE for your support. Quote Link to comment Share on other sites More sharing options...
MVP 2021 Ausman Posted March 26, 2019 MVP 2021 Report Share Posted March 26, 2019 And did the use for half a year have the problems all the time, or have they only just started happening? cheers, Aus Quote Link to comment Share on other sites More sharing options...
Fernanda Posted September 19, 2019 Report Share Posted September 19, 2019 Hola a todos Tengo un problema con el PLC unitronics V350-35- TR34, se encuentra en modo stop. Alguien me podría ayudar Hello everyone!! i have a similar problem with my PLC V350, ¿coul you help me? please. Quote Link to comment Share on other sites More sharing options...
MVP 2014 Simon Posted September 19, 2019 MVP 2014 Report Share Posted September 19, 2019 That is a different issue, the details on the screen are different. In your case Fernanda, the PLC has lost it's Visilogic project. The most likely reason is that the on-board battery is flat (check the value of SB8) and the project was not originally downloaded with either the "download all and burn" or "Burn upload project" options. Quote Link to comment Share on other sites More sharing options...
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